普通话 Pǔtōnghuà is the common name for the group of dialects found in northern China that is the official language of China.

While the Chinese insist that everyone in China speaks variants of
"Chinese", the native dialects of much of southern China can be considered distinct languages in their own right.

得 de is a particle added to the end of verbs so that you can modify them. So to turn "He speaks" 他说 tā shuō
into "He speaks well" you just have to add the character for "good",
hǎo and add the particle 得 de to the end of the verb "to speak",
说 shuō.
The final product is 他说得好 tā shuōde hǎo.

The Mandarin language is not as difficult as you might think. There’s
a reason why it’s the world’s most spoken language! A lingua franca for much of Northern China since the Yuan dynasty,
Mandarin has a simple, no-nonsense grammatical system and a vocabulary that builds upon itself.
So don’t be daunted! You too can speak this beautiful language.

Lost Laowai China Expat Community The no-nonsense China expat and
traveler community. Everything you need to know about travelling to China; living, teaching and working in China; and learning Chinese.